Dual steam generating apparatus



June 10, 1952 s. LAFLEUR DUAL STEAM GENERATING APPARATUS Filed Feb. 6, 1946 JNVENTOR. S/NA/ LA FL EUR 1 HIS ATTORNE Patented June 10, 1952 I I 2,599,924 DUAL STEAM GENERATING APPARATUS 1 Sinai Lafleur, Detroit, Mich. Application February 6, 1946, Serial No. 645,753

My invention relates to a new and useful improvement in a dual steam generating apparatus adapted ior'use in combustion of a low grade oil in conjunction with which steam under pressure is utilized.

It is an object of the present invention to provide a mechanism of this class which will be simple in structure, economical of manufacture, durable, compact and highly eflicient in use.

Another object of the invention is the provision in a mechanism of this class of a boiler asso- "ciated With'a generator element so arranged and constructed that the burner element will serve to generate steam in the boiler. I Another object of the invention is theprovision in a mechanism of this class of a pair of auxiliary steam generating boilers,one of which is fpro ;vided with an electric heating element whereby steam may be generated in theinitial starting of the device and which later serves as areservoir for steam generated by auxiliary'reservoir. v

Another object of the inventionis the provision in a mechanism of this type of a steam reservoir the burner itself .in. the

2Claims. (01. 153-73) which .will also serve as a hot water container for effecting a pre-heating of the oil or fuelwhich is being used.

Other objects will appear hereinafter.

It is recognized that variou modifications and changes may be made in the detail of structure illustrated without departing from the invention itself and it is intended that such variations and modifications shall be encompassed within the scope of the claims which form a part hereof.

Forming a part of this specification are drawings in which:

Fig. 1 is a side elevational view of the invention;

Fig. 2 is a sectional view taken on line 2-2 of Fig. 1;

Fig. 3 is a sectional view taken on line 3-3 of Fig. 2;

Fig. 4 is a fragmentary, enlarged, sectional View taken on line 4-4 of Fig. 2.

In the drawings, I have illustrated the invention as embodying a container l7 leading into which are spaced apart pipes 18 and [9, which serve to connect the container I! with the boiler or steam generator 20 so that water may circulate between the containers l1 and 2B. A water supply pipe 2| is connected to a suitable source of water supply and serves to conduct water into the container [1. A float operated valve 22 operated .by the float ball 23 serves to control the flow of water into the container (1. A pipe 24.

serves to communicate the containers l1 and 20 adjacent; their upper ends so that'steam generated in the boiler or generator 20 may pass-into the upper side of the container l1. This container I1 is provided with a suitable safety valve 25 connected with the interior of the container I! by the piping 26. A pressure gauge 21 is mounted on the container IT to indicate the pressure therein and the outlet pipe 28 communicates with the container I1 and serves to conduct steam therefrom to the valve housing 29.

Positioned in the container H is an electric heating element 30 having a base 3| through which projects a terminal 32 whereby this heating element may be suitably connected to a source of electrical energy.

Passing through the reservoir or container i1 is an oilor fuel conducting pipe 33 which connects to a suitable source of supply and serves to conduct the oilto the metering valve 34 which communicates through the solenoid operated valve 35,

electrically connected by the wires 36 to a suitable source of electrical energy, to the delivery pipe 3'! which attaches to a nipple 38. This nipple is mounted on a nozzle head 39 and communicates through passage 40 with chamber 4|. Nipple 43 communicates with the chamber 4! through passage 42 and is connected to the steam line 44. The steam line has a hand operated valve 45 and a solenoid operated valve 46 therein for controlling the steam supply to the nozzle head 39. The valve 46 is controlled through wires 41. The nozzle head has an end wall 50 for the chamber 4|, a passage 5| through same and a screen hood over and spaced from the end of wall 50. Steam through passage 42 draws in oil through passage 40 and ejects same through passage 5|, there being an atomization in the process. The screen tends to further break of the oil and the burning takes place just outside of screen 52.

In operation, the water delivery pipe 2| will serve to deliver into the container I! the amount of water required to operate the float valve and close it so that a constant supply of water in the container I1 is provided. This, of course, will be indicated on the water glass 49. This water is permitted to flow into the container or steam generator 20 through the pipes l8 and I9. In order to start the mechanism, the electrical heating element 30 is connected to a source of electric energy and this heating element is used until steam is generated in the container I! so that there shall be sufilcient steam to start the burner operating. As soon as the burner is operated a sufiicient time to generate steam in the generwill be controlled by a thermostat in a room to be heated. These solenoid valves are constructed alike so that a description of one will suffice for both. When the thermostat in the roomis such as to close the valves 35 and 46, the burner would go out were there no provision fora-continued supply of fuel and steam to the burner. This is accomplished by a bypass through the solenoid valve.

The mechanism isv of sufliciently compact and small design that it may be transported from place to place so that there is thus provided a portable burning mechanism associated with a portable boiler. Thus, I have provided a heating mechanism which will lend itself to many uses. where a portable construction is required. The design is one which has proven itself most efficient in use and quite economical to manufacture.

What I claim as new is:

1. A device of the class described comprising: a water container for containing water at a predetermined level; a steam generator for conerator into said container; a fuel nozzle; a conduit'for conducting fuel oil to said nozzle, said conduit passing through said container below the liquid level therein; an electric heating element in said container for heating the liquid and genj Number erating steam therein; and a conduit for conducting steam from said container to said nozwater level for conducting steam from said gen-:10

zle, the relative positions of said nozzle and said generator being such that fuel issuing from said nozzle and burning serves to generate steam in said generator.

2. In a device of the class described, a liquid container for containing water at a predetermined level; a steam generator positioned ad- Jacent said container in spaced relation thereto; a conduit for connecting said container and said generator together below the level of water in said container for maintaining the same level of water in said generator and in said con- 'tainer; a conduit connecting said generator and said container together above the water level for conducting steam from such generator into said container; a fuel nozzle; a conduit for conducting fuel'oil to said nozzle, said conduit passing through said container below the liquid level therein; a conduit for conducting steam from said container to said nozzle, the relative positions of said nozzle and said generator beingsuch that fuel issuing from said nozzle and burning serves to generate steam in said generator. I

SINAI REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 457,801 Sturtevant Aug. 18, 1891 1,052,080 Mills et a1 Feb. 4, 1913 1,088,432 Loper Feb. 24, 1914 1,466,250 Reschke Aug. 28, 1923 1,531,369 Antoine et a1 Mar. 31, 1925 1,748,945- Dickson et al Mar. 4, 1930 1,806,390 Farr et a1 May 19, 1931' 1,827,950 Mulligan Oct. 20, 1931 1,994,026 Pierce Mar. 12, 1935 2,068,216 Woolery' Jan. 19, 1937 2,117,190 May May 10, 1938 2,121,271 Szabo June 21, 1938 FOREIGN PATENTS Country Date 724,027 France Jan. 23, 1932 

